Hi, For about a month I'm having a strange issue with the USB audio. I did maybe 1 or 2 updates of -CURRENT during this time, but not sure when it has started exactly as it does not show up immediately.
The issue is: I have a set of USB speakers which I use as the main output. After a few days of uptime (this time it was 3), the audio simply disconnects. In dmesg it looks like: ugen0.4: <Generic Philips SPA 20/93> at usbus0 (disconnected) umass0: at uhub0, port 9, addr 3 (disconnected) da0 at umass-sim0 bus 0 scbus6 target 0 lun 0 da0: <Generic Masstorage 1.00> s/n 20220701093627 detached (da0:umass-sim0:0:0:0): Periph destroyed umass0: detached uaudio0: at uhub0, port 9, addr 3 (disconnected) pcm2: detached uaudio0: detached usbhid1: at uhub0, port 9, addr 3 (disconnected) hcons0: detached hidbus1: detached usbhid1: detached At this point, things appear quite strange. If I reconnect this device, it's not detected anymore, complete silence. Moreover, if I connect other USB devices, there are ignored by the system (no output in dmesg). The system has a builtin audio, but when this happens, switching to it does not help: > cat /dev/sndstat Installed devices: pcm0: <Realtek ALC897 (Rear Analog)> (play/rec) default pcm1: <Realtek ALC897 (Analog)> (play/rec) No devices installed from userspace. But I get no audio when I try to test it with e.g. 'mpv -ao oss'. That could be a hardware issue, but feels more like a bug in the USB/sound subsystem? Any ideas how to debug that? I'm running -CURRENT @ 0010c4b8a020dbeb81e61b71117d1caae9b044cc now. Roman
